75 lines
1.7 KiB
C++
75 lines
1.7 KiB
C++
|
/***
|
||
|
|
Copyright (C) 2021 J Reece Wilson (a/k/a "Reece"). All rights reserved.
|
||
|
|
|
||
|
|
File: Compression.cpp
|
||
|
|
Date: 2021-6-17
|
||
|
|
Author: Reece
|
||
|
|
***/
|
||
|
|
#include <RuntimeInternal.hpp>
|
||
|
|
#include "Compression.hpp"
|
||
|
|
|
||
|
|
#include "zstd.h"
|
||
|
|
|
||
|
|
namespace Aurora::Compression
|
||
|
|
{
|
||
|
|
AUKN_SYM bool Compress(const void *buffer, AuUInt32 length, AuList<AuUInt8> &out, int compressionLevel )
|
||
|
|
{
|
||
|
|
if (!TryResize(out, length))
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
auto ret = ZSTD_compress(&out[0], out.size(), buffer, length, compressionLevel);
|
||
|
|
if (ZSTD_isError(ret))
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
out.resize(ret);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
AUKN_SYM bool Compress(const AuList<AuUInt8> &in, AuList<AuUInt8> &out, int compressionLevel)
|
||
|
|
{
|
||
|
|
return Compress(in.data(), in.size(), out, compressionLevel);
|
||
|
|
}
|
||
|
|
|
||
|
|
AUKN_SYM bool Decompress(const void *buffer, AuUInt32 length, AuList<AuUInt8> &out)
|
||
|
|
{
|
||
|
|
auto inflatedLength = ZSTD_getFrameContentSize(buffer, length);
|
||
|
|
|
||
|
|
if (inflatedLength == ZSTD_CONTENTSIZE_ERROR)
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (inflatedLength == ZSTD_CONTENTSIZE_UNKNOWN)
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ZSTD_isError(inflatedLength))
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!TryResize(out, inflatedLength))
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
auto ret = ZSTD_decompress(&out[0], out.size(), buffer, length);
|
||
|
|
if (ZSTD_isError(ret))
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
out.resize(ret);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
AUKN_SYM bool Decompress(const AuList<AuUInt8> &in, AuList<AuUInt8> &out)
|
||
|
|
{
|
||
|
|
return Decompress(in.data(), in.size(), out);
|
||
|
|
}
|
||
|
|
}
|